Object detection method and system

Abstract

An object detection method and an object detection system, suitable for detecting moving object information of a video stream having a plurality of images, are provided. The method performs a moving object foreground detection on each of the images, so as to obtain a first foreground detection image comprising a plurality of moving objects. The method also performs a texture object foreground detection on each of the images, so as to obtain a second foreground detection image comprising a plurality of texture objects. The moving objects in the first foreground detection image and the texture objects in the second foreground detection image are selected and filtered, and then the remaining moving objects or texture objects after the filtering are output as real moving object information.

Description

CROSS-REFERENCE TO RELATED APPLICATIONThis application claims the priority benefit of Taiwan application serial no. 98139336, filed on Nov. 19, 2009. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of specification.BACKGROUND1. FieldThe disclosure is related to an object detection method and an object detection system applying a background probability model and a dynamic texture model.2. Description of Related ArtAlong with the advance of technology, environmental safety and self safety draw more and more attention. The research on video surveillance is even more emphasized. Not only the research on video surveillance and recording makes progress, but also technology of video intelligence grows up with each day. How to precisely grasp an occurrence of an event at a very moment and take corresponding actions has become a major issue in the research of the video intelligence.In the process of video intelligence, a lack ...

AI Technical Summary

Benefits of technology

The present disclosure is related to an object detection method, which can increase an accuracy of object detection in a crowd scene.

Based on the above, the object detection method and the object detection system of the disclosure fuses information of a background probability model and a dynamic texture model to filter redundant moving objects resulted from natural phenomena. Therefore, an erroneous foreground resulted from the natural phenomena can be filtered out and an accuracy of object detection in a crowd scene can be increased.

Problems solved by technology

How to precisely grasp an occurrence of an event at a very moment and take corresponding actions has become a major issue in the research of the video intelligence.

In the process of video intelligence, a lack of fast accommodation to climate or natural phenomena always results in redundant detection errors and raises disturbance or even panic.

However, an accuracy of the detection using the temporal differencing method is easily affected under a crowd scene because of the comparison frequency.

The optical flow method is unable to filter out redundant moving objects resulted from the natural phenomena.

However, in this algorithm, once the object stops moving, an accuracy of the detection reduces rapidly, which is unable to respond to a real condition.

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